diff --git a/Cargo.toml b/Cargo.toml
index 67875a5..a318dee 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -20,14 +20,15 @@ diff = "0.1.10"
 filetime = "0.2"
 getopts = "0.2"
 log = "0.4"
+once_cell = "1.20"
 regex = "1.0"
-tempfile = { version = "3.0", optional = true }
+rustfix = "0.8"
+rustversion = "1.0"
 serde = "1.0"
-serde_json = "1.0"
 serde_derive = "1.0"
-rustfix = "0.8"
+serde_json = "1.0"
+tempfile = { version = "3.0", optional = true }
 tester = "0.9"
-lazy_static = "1.4"
 
 [target."cfg(unix)".dependencies]
 libc = "0.2"
diff --git a/src/common.rs b/src/common.rs
index d1b8e68..169a6db 100644
--- a/src/common.rs
+++ b/src/common.rs
@@ -415,10 +415,18 @@ mod config_tempdir {
 #[cfg(feature = "tmp")]
 pub use self::config_tempdir::ConfigWithTemp;
 
+#[cfg(feature = "rustc")]
+#[rustversion::since(2024-11-03)]
+use rustc_session::config::host_tuple as host;
+
+#[cfg(feature = "rustc")]
+#[rustversion::before(2024-11-03)]
+use rustc_session::config::host_triple as host;
+
 impl Default for Config {
     fn default() -> Config {
         #[cfg(feature = "rustc")]
-        let platform = rustc_session::config::host_triple().to_string();
+        let platform = host().to_string();
 
         Config {
             bless: false,
diff --git a/src/runtest.rs b/src/runtest.rs
index 775166c..69e89f5 100644
--- a/src/runtest.rs
+++ b/src/runtest.rs
@@ -21,6 +21,7 @@ use filetime::FileTime;
 use regex::Regex;
 use rustfix::{apply_suggestions, get_suggestions_from_json, Filter};
 
+use once_cell::sync::Lazy;
 use std::collections::HashMap;
 use std::collections::HashSet;
 use std::env;
@@ -37,9 +38,8 @@ use std::sync::{Arc, Mutex, RwLock};
 use crate::extract_gdb_version;
 
 fn get_or_create_coverage_file(path: &Path, create: impl FnOnce() -> File) -> Arc<Mutex<File>> {
-    lazy_static::lazy_static! {
-        static ref COVERAGE_FILE_LOCKS: RwLock<HashMap<PathBuf, Arc<Mutex<File>>>> = RwLock::new(HashMap::new());
-    }
+    static COVERAGE_FILE_LOCKS: Lazy<RwLock<HashMap<PathBuf, Arc<Mutex<File>>>>> =
+        Lazy::new(Default::default);
 
     {
         let locks = COVERAGE_FILE_LOCKS.read().unwrap();
diff --git a/tests/test_support/mod.rs b/tests/test_support/mod.rs
index e775734..638f10c 100644
--- a/tests/test_support/mod.rs
+++ b/tests/test_support/mod.rs
@@ -2,6 +2,7 @@
 //!
 //! Inspired by cargo's `cargo-test-support` crate:
 //! https://github.com/rust-lang/cargo/tree/master/crates/cargo-test-support
+use once_cell::sync::Lazy;
 use std::cell::RefCell;
 use std::env;
 use std::fs;
@@ -14,18 +15,16 @@ thread_local! {
     static TEST_ID: RefCell<Option<usize>> = RefCell::new(None);
 }
 
-lazy_static::lazy_static! {
-    pub static ref GLOBAL_ROOT: PathBuf = {
-        let mut path = env::current_exe().unwrap();
-        path.pop(); // chop off exe name
-        path.pop(); // chop off 'deps' part
-        path.pop(); // chop off 'debug'
-
-        path.push(COMPILETEST_INTEGRATION_TEST_DIR);
-        path.mkdir_p();
-        path
-    };
-}
+pub static GLOBAL_ROOT: Lazy<PathBuf> = Lazy::new(|| {
+    let mut path = env::current_exe().unwrap();
+    path.pop(); // chop off exe name
+    path.pop(); // chop off 'deps' part
+    path.pop(); // chop off 'debug'
+
+    path.push(COMPILETEST_INTEGRATION_TEST_DIR);
+    path.mkdir_p();
+    path
+});
 
 pub fn testsuite(mode: &str) -> TestsuiteBuilder {
     let builder = TestsuiteBuilder::new(mode);